I have used both. And several others.
The main discerning difference after cost, is in the bearing carrier materials and the number of bearings.
One is a plastic bearing carrier with fewer bearings and the another is a metal carrier with more bearings.
Most plastics might dry up and wear out after a decade or so.
For a while, with the metal carriers, there was a failure mode where you could strip the bearings when inserting the drawer box member into the cabinet member.
The front plastic positioning guide was modified to remove that failure mode.
They, and most of their counterparts are pretty well set as for standards of construction and reliability.
They are pretty much reduced to commodity status for the most part.
If it is my choice and all other considerations are equal, I am buying the one with the metal bearing carrier and the higher bearing count.
Also, I am not a fan of soft closing side mount guides in general.
I use undermounts for soft close exclusively.
My $0.02